Select the picture that shows the process of a heat engine_ A Ta O A. Device A O B. Device B O C. Device C Wat Q B Va W C₂ Fa Weet
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Select the picture that shows the process of a heat engine_________
A. Device A
B. Device B
C. Device C
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- 2. Explain the operation of Thermal system with neat diagramOnly answer the following question using thermal circuit: What is the rate of heat transfer between hot oil and outside air?In company that designs road cars and heavy trucks, it important to make the proper selection of the engines. Your part as a system energy engineer is to make a proper selection between an engine operates on Otto cycle/gasoline engine or Diesel cycle/diesel engine. Your head of department asked you to provide a detailed technical report that shows your selection for engine to be used with heavy truck vehicle. This is best achieved by performing the following tasks: Section.1: 1. Which engine does operate at lower rpm and has higher air-fuel mass ratio? 2. Which engine does burn fuel more completely? 3. Which engine has lower fuel cost? 4. Explain what compression ratio for Otto and Diesel cycles means 5. Explain what cut-off ratio for Diesel cycles means 1:06 pm 6. Explain the limitations of SI engines in terms of their ability to operate at much higher compression ratios. What is this limitation called? 7. Provide general plot(s) for thermal efficiency, 7 vs compression ratio, r for…
- AaBbCcDd AaBbCcDd AaBbC AaBbCcC AaB AaBbCcD AaBbCcDd AaBb I Normal 1 No Spac. Heading 1 Heading 2 Title Subtitle Subtle Em. Emp- Paragraph Styles There is a hot water source in New Delhi.Our plan is to use this heat source for heating and hot water supplies of a site of 100 hostels. The outlet temperature of the water from the source is 170°C. 4- An official realizes that the outlet temperature of the groundwater is too high and is considering using it to generate electricity. Design an Organic Rankine Cycle (ORC) suitable for this purpose. (Ctrl)In an absorption refrigerator, the energy driving the process is sllPplied not as work, but as heat from a gas flame. (Such refrigerators commonly use propane as fuel, and are used in locations where electricity is unavailable. *) Let us define the following symbols, all taken to be positive by definition: Qf = heat input from flame Qe = heat extracted from inside refrigerator Qr = waste heat expelled to room Tf = temperature of flame Te temperature inside refrigerator Tr = room temperature Use the second law of thermodynamics to derive an upper limit on the COP, in terms of the temperatures Tf, Te, and Tr alone.In an absorption refrigerator, the energy driving the process is sllPplied not as work, but as heat from a gas flame. (Such refrigerators commonly use propane as fuel, and are used in locations where electricity is unavailable. *) Let us define the following symbols, all taken to be positive by definition: Qf = heat input from flame Qe = heat extracted from inside refrigerator Qr = waste heat expelled to room Tf = temperature of flame Te temperature inside refrigerator Tr = room temperature Explain why the "coefficient of performance" (COP) for an absorption refrigerator should be defined as Qc/Qf.
- An increase in the natural greenhouse effect that leads to heating of the earth is called _____.3 Condenser Expansion valve Compressor Evaporator Tin ļ Tout Fig.2: Heat pump system described in part (a) [2] 1. Construct a P-h and T-S plots showing a. All the processes b. The refrigeration effect (RE), heat of compression (HOC), and heat of rejection (HOR).Topic: HEAT ENGINES, HEAT PUMPS & THERMAL EFFICIENCY The energy transferred by heat from an engine during one cycle is 500 J. Howmuch energy must be added to the engine so that it can operate at 30%efficiency?
- Which one of the following processes of heat transfer requires the presence of a fluid? a. conduction b. radiationc. convectiond. none of the above choices are validWrite down the functions of the following parts/accessories used with the equipment in heat and mass transfer laboratory. Compressor with thermal conductivity of building materials equipment. Up/down valve. DC power supply. Cooling section in linear module. Temperature selector in heat conduction study bench.A house is heated and maintained at 20 °C by a heat pump. Part A Part B Based on these results, would you recommend heat pumps at locations with a severe climate? Match the words in the left column to the appropriate blankes in the sentences on the right. Reset Help mild 1. Given that a real heat pump is significantly efficient than a Carnot heat pump, the increases advantage of a heat pump over electric heating rapidly when the outside temperature becomes really low. less more 2. As the COP decreases, the heating power decreases 3. A heat pump is ideal for a climate. severe Submit Request Answer