Heat transfer oil systems, also referred to as thermal oil systems are employed in almost all industrial production sectors for indirect heating of. Thermal oil systems are superior to water boiling systems. Steam a thermal fluid hot oil system operates in a closed loop circulation system with minimal pressure. Seal oil system of generator in thermal power plant free download as powerpoint presentation. Applications three way thermostatic valves may be installed for either mixing or diverting modes of operation at the preference of the user. Otherwise the system can be eventually damaged due to overheating or bruising of the fluid.
At some point, a hot oil system may require a system cleanout due to ongoing excessive maintenance andor operating problems, which cannot be rectified by simply replacing the fluid. Sudden trips or unplanned shutdowns of the system may cause the oil to overheat. When installed as a mixing valve, it is on the cold side of the application, and mixes hot liquid with cooled. A heat transfer fluids operating life and performance can be increased by carefully following the shutdown procedures of a thermal oil system. A thermal oil boiler is the main component in a thermal fluid heating system, where a liquid fuel is heated and circulated to provide energy to different energy users within a closed circuit. The provisions made for thermal expansion and draining of thermal oil is a key factor to consider for the successful installation of.
Our exclusive additive system delivers unparalleled protection and service life. Thermal oil system is a heat carrier thermal oil heating plant comprised of thermal oil heater, circulating pump, heat consuming device, expansion tank, storage tank, deaerator, piping and control panel. Overview of thermal fluid heaters national board of boiler. Oil systems are used for heating processes to temperatures above those which can be. A hot oil system in general is a closed loop heating arrangement with a heat source typically a fired heater or some kind of waste heat recovery units whru and heat sinks i. We design and manufacture thermal transfer systems to meet your specifications. Starting with common design layouts and continuing through operations, cleaning and troubleshooting, these 10 tips will help you maximize your investment. Although used as an essential utility extensively in process industries especially in oil and gas plants, design methodology for hot oil system is not well documented in the open literature. Jul 19, 2019 perhaps the most compelling reason you may want to consider a thermal fluid heating system over a steam heating system for your facility is safety. Unlike a water or steam boiler, this heating process does not heavily pressurize the system. A liquid phase thermal fluid system uses a flooded pressure vessel. Thermal oil for industrial applications innergy heavy. The thermal oil heats coils in various types of heat users.
The network itself can contribute to 1520% of the total cost of the system1, thus making it an important parameter to optimize. Using microsoft excel to simplify the calculations, the optimized system would be a double pipe heat exchanger of 2,930 feet, mass. Thermal fluid systems hot oil heaters thermal process. The process of thermal oil in a heat generation system using conventional industrial boiler or industrial biomass boiler. Heat transfer is a discipline of thermal engineering that concerns the transfer of thermal energy from one physical system to another. Thermodynamics, fluid mechanics, and heat transfer getting started in fluid mechanics. The thermal oil, gulftherm 32, is a mineral oil which states in the technical data sheet that the. For solid fuel systems, we stock many different grate bars here in north america. Standard and custom heaters are available in gasfired, oil fired, electric and.
The electric heater is a real alternative to fired heaters and, in addition to continuous operation, is also suitable for bridging peak loads and standby mode. Find the right thermal fluid or heat transfer system cleaner, compare industry fluids, get full engineering specs, free tech support and fluid analysis. Thermal insulation is an important feature when developing or maintaining hotoil systems. Some of the most common thermal oils these heat transfer pumps handle include marlotherm, duratherm, paratherm, multitherm, mobiltherm and. An industrial heating system with thermal oil works through a coil using a combustion chamber.
Known as thermal cracking the thermal oil can prematurely fail due to the thermal oil developing new compounds and becoming more volatile, such as the flash point of the fluid being lowered. This explain the process of working of seal oil system in generator. This report shows duratherms superior resistance to oxidation, the main cause of sludge buildup and fluid degradation. However, sufficient insulation in such systems comes with certain advantages and disadvantages. Pdf a techincal report on design of hot oil system researchgate. Control of the working temperature of thermal oil is important for the safe operation of thermal oil heaters.
Overheating causes degradation of the oil and will form sludge. Circulation pumps heat to medium circulation rates and inletoutlet temperatures determine selection of single or. Pirobloc manufactures thermal oil heaters and provides thermal fluid solutions for industrial heating. The heating of the thermal oil takes place through the heat generated by the combustion of the biomass in the furnace of the boiler, or of the fuel natural gas, oil, fuel oil, etc.
This article presents the consequences of improper shutdown. Efficient efficient design of this hot utilit y system is crucial for satisfactory p. Our hot oil boilers provide heat through liquid fuel hfo, light oil andor gaseous natural gas, propane, etc. High temperature oil pumps such as these are primarily used to feed an oil burner or furnace, or as a hot oil circulation pump for circulating the fuel as part of a larger boiler feed or heating system. Gas processing heat medium circulation pumps can be packaged with the instrument compressor system for space efficiency in hot oil systems. The coil heats the thermal oil or fluid that is pumped through the thermal oil boiler. The only essential difference is how the endsupply control is handled. Process design of the heater is critical for satisfactory operation. Safety in design of thermal fluid heat transfer systems. The thermal fluid enables the coils to be heated and, in this way, the heat is indirectly transferred to a consumer, through a hydraulic circuit. Total thermal management of battery electric vehicles bevs. Standard and custom heaters are available in gasfired, oilfired, electric and. Risk engineering guideline heat transfer oil systems pdf.
Under these conditions, this thermal oil can be used for more than 30 years. The proven longevity of thermo prides octagon oil heat exchanger, combined with the limited lifetime warranty, virtually eliminates the worry of ever having to replace your furnace. As with any system, thermal oil heaters too have their share of problems. A followup interview is conducted with a department head to discuss effectiveness of the thermal fluid system training and to make any recommendations based on the inspection. Hot oil heat medium process skid system at burlington, northern british columbia natural gas processing facility. A thermal fluid system consists of a closed circuit with minimum energy leaks. The coil takes the energy from the combustion using the system of oil pumped through it at low pressure. Our thermal fluid systems are used in a variety of application and industries including aerospace, automotive, and powerenergy. Hyway thermal fluid heat systems gencor industries inc. Fulton thermal fluid systems can reach 750f 345c making them an ideal choice for many process heat applications. System components and their function the system is made up of a pump that pushes the heat transfer fluid though an insulated piping system to a heater to the processing equipment. However, it is difficult to completely prevent fires in these systems because the necessary ingredients for a fire fuel, air and ignition source are present by design. Thermal fluid heating, sometimes referred to as thermal oil heating, is a.
The outlet temperature of the thermal oil directed to the orc can rise up to 320c, due to the use of high quality synthetic oil. Thermal oil heaters for hot oil heating systems pirobloc. The reduction in steam quickly results in a reduction in oil production equivalent to the pre coinjection sor, with only a short benefit on that wellpair solvent multiple trials with vaporizing and condensing mixtures hexane dominated the solvent will increase incremental oil rate, but success is ultimately a. Utempra system unifies the thermal management systems of bevs and may be thought of as a natural evolution of the various types of thermal management architectures in the bevs to date. Thermal oils are subject to degradation when operating at higher temperatures. When you select our heating or cooling products youre buying more than just a system. Efficient efficient design of this hot utilit y system is crucial for satisfactory p erformance of the respective. Designing, building and operating a thermal oil heat transfer system can be costeffective if planned for properly from the start. Thermal oil, glycol, and water are common heat transfer mediums for these systems. Design of hot oil system heat transfer coolant scribd. As a result the company set their thermal oil circuits to 3158c in the belief that this would be both reasonable and acceptable.
Hot oil heating is safer than heating processes involving steam for a number of reasons. Fuel savings up to 20% compared to steam heating systems. At least 90% of the fuel is used in the heating process. A thermal fluid hot oil system operates in a closed loop circulation system with minimal pressure. The reason why thermal oil heating becomes more and more used, are mainly related to these features and arguments. Operating a hot oil heat transfer fluid system is not too hard when you know the basics. Seal oil system of generator in thermal power plant pump. The compressor seal oil system is designed and furnished with instrumentation similar to the lube oil system shown in figure 154. Preventing fires in thermal oil heat transfer systems thermal fluids have proven exceptionally safe in a wide range of industries. Aug 08, 2017 the coil heats the thermal oil or fluid that is pumped through the thermal oil boiler. Sizing of expansion tank for hot oil system november 4, 2012 november 4, 2012 rifka aisyah thermal oil heater i want to share my experience about sizing of expansion tank especially for thermal oil heater. This will necessitate cleaning and replenishing the oil.
We are experts in the design, manufacture, installation and maintenance of thermal fluid boilers and other technologies applied to industrial heating, such as heat exchangers, expansion tanks, preheating furnaces and electric boilers. The design of the oil heater consists of a steel cylinder with an internal cylindrical fuel manifold. Thermal oil is a highly suitable and safe alternative to steam in many processes, particularly where the dangers of high pressure are to be avoided. Thermal oil heater for high temperature process heating. Thermal fluid heating is a type of indirect heating in which a liquid phase heat transfer medium is heated and circulated to one or more heat energy users within a closed loop system. There are two general types of heat transfer fluid systems liquid phase and. Even if energy costs are ignored, a high level of protection would still have to be provided to company workers, who are constantly exposed to hot pipes. Introduction the size of a piping network is a crucial aspect in designing a water supply system. Project standards and specifications page 5 of 18 rev. The temperature of the combustion gas at the inlet of the thermal oil boiler is normally about 950c.
It comprises a semihermetic refrigeration loop 1 and a coolant network for thermal energy distribution and waste energy harvesting. Heated thermal fluid is circulated through the inner manifold while fuel oil is circulated countercurrent through the external jacket, thus providing optimum heat exchange and transfer to the fuel. To meet this gap, a design guideline for this process. Thermal process development stocks many different parts for thermal fluid systems, including flow meters, thermal oil valves, ksb and allweiler pump parts, level switches, thermocouples and many more. Heat transfer fluid htf systems, also known as hot. Thermal fluid systems heat medium packages petrotech. Problems with improper shutdown in thermal oil systems.
The outlet requires oil to be within the range of 120f and 165f, with water not exceeding 180f. Thermal insulation is an important feature when developing or maintaining hot oil systems. We have carried out more than 1500 projects all over the world during the last 40. The choice between a steam system or a thermal fluid system is governed by the process requirements. Pdf hot oil system design consideration subhasish mitra. Some thermal oil types may also ignite when exposed to the air. The provisions made for thermal expansion and draining of thermal oil is a key factor to consider for the successful installation of a thermal oil heating system.
Code of practice for the safe operation of thermal oil heaters. Thermal oil system solutions a correct and safe system design is very important for high temperature systems. Thermal oil is characterized by being a heat transfer medium of great versatility, that is, it can cover the specific needs of a wide variety of industrial sectors. Nov 04, 2012 sizing of expansion tank for hot oil system november 4, 2012 november 4, 2012 rifka aisyah thermal oil heater i want to share my experience about sizing of expansion tank especially for thermal oil heater. Plan thermal fluid system layout carefully there are an infinite number of layouts, and that is because. There is an expansion tank on the system to allow for the expansion of the hot oil as it gets heated up and contraction when the hot oil is cooled down. The robust design and construction of speck thermal fluid pumps is due to a rigorous quality control system that begins at their manufacturing facilities where iso. Like most thermal fluid applications, this project can be analyzed in two sections. Thermal oils are lowviscosity fluids that are gradually heated or cooled and circulated around a system to regulate process temperatures.
General technical advantages of thermal oil for its application in industrial sectors. Find the right thermal fluid or heat transfer system cleaner, compare industry fluids, get full engineering specs, free tech support and. Thermal oil heaters for thermal fluid systems pirobloc. Thermal fluid system training paratherm heat transfer fluids. This problem entails designing a piping system to supply water. Since the system does not require pressurization, the risk of a dangerous explosion is eliminated. Tubing is comprised of schedule 40 steel pipes and the desired system is to implement a double pipe heat exchanger. You need to know youre getting a thermal fluid system thats safe, reliable and meets all other requirements, and you need the documentation to back that up.
Design considerations of hot oil system subhasish mitra introduction. A summary report detailing all findings, training topics, recommendations and certificates earned will be supplied to the client. Thus, this can also be optimally integrated as an additional heater with a very small space requirement in a thermal oil system. This thermal oil has a maximum working temperature of 398c and is stable with time so long as this maximum temperature is not surpassed and a suitable treatment system the socalled oil ullage system is installed in the plant. Engineers also consider the transfer of mass of differing chemical species. Gekakonus is a global manufacturer in following sectors thermal oil heating systems high pressure steam boiler high pressure steam generators high pressure quick steam generators. This paper discusses some of the key safety design and operational aspects of hot oil systems covering the following topics. Known as thermal cracking the thermal oil can prematurely fail due to the thermal oil developing new compounds and. T hermal fluid systems heat medium packages, must be designed and built perfectly to meet the needs of oil and gas companies. Design of hot oil system free download as pdf file. Here are some of the main technical characteristics of thermal oil.
Thermal oil is a flammable substance which can produce flammable mist to induce fire and explosion hazards at high temperature. When you select our heating or cooling products youre buying more than just a system youre buying peace of mind. Engineers also consider the transfer of mass of differing chemical species, either cold. Why hot oil is better than steam for industrial heating.
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