Description : Pot furnace which is either regenerative or recuperative, is used in the manufacture of (A) Glass (B) Stainless steel (C) Potteries (D) Refractory bricks
Last Answer : (A) Glass
Description : Operation of blast furnace stove is based on the principles of a __________ furnace. (A) Regenerative (B) Recuperative (C) Both (A) and (B) (D) Neither (A) nor (B)
Last Answer : (A) Regenerative
Description : Using an organic fluid that boils at a low temperature means that energy could be regeneratedfrom waste fluids is known as ________. a) Heat exchanger b) Heat remover c) Heat pumps d) Heat absorber
Last Answer : Heat pumps
Description : A waste heat recovery unit (WHRU) is an_________ that transfers heat from process outputs at high temperature to another part of the process for some purpose, usually increased efficiency. a) Energy recovery heat exchanger b) Energy recovery heat diffuser c) Both ‘a’ and ‘b’ d) None of the above
Last Answer : Energy recovery heat exchanger
Description : A waste heat recovery unit is an energy recovery heat exchanger that transfers heat from process outputs at ........ a) High temperature b) Medium temperature c) Low temperature d) Both a & b
Last Answer : High temperature
Description : Very high pressure boilers are usually __________ boilers. (A) Fire tube (B) Water tube (C) Waste heat (D) Natural circulation
Last Answer : (D) Natural circulation
Description : To reduce the stack loss, heat recovery from flue gas can be done by (A) Preheating of cold stock (B) Preheating of combustion air (C) Steam generation in waste heat boilers (D) All (A), (B) and (C)
Last Answer : (D) All (A), (B) and (C)
Description : Write about waste heat boilers?
Last Answer : The waste heat boilers use the waste heat in gases coming out of diesel engines and gas turbines at high temperature (or) use the waste as a fuel in the incineration. Some boilers use the industrial dirty gases for power generation.
Description : Write About Waste Heat Boilers?
Description : How is waste heat boilers categorized?
Last Answer : Chemical plants -(hydrogen, nitrogen, sulfuric acid, sulfur recovery) Incineration plants-(fumes, chemicals, municipal solid waste) Refineries-(cat cracker, CO off gases) Cogeneration, combined cycle plants ... exhaust) Furnaces, kilns-(exhaust gases) See a complete table at the link below.
Description : What Is Heat Exchanger? What Are The Types Of Heat Exchanger?
Last Answer : It is an Equipment to use for Exchange the heat(Cooling or Heating purpose) Types: Fixed Tube Heat Exchanger Floating Tube Heat Exchanger U Tube Exchanger Plate Type Exchanger Fin Fan Cooler Heat Exchanger Bridge Lock Exchanger
Description : The exchanger typically used in the pressurizing section of a dairy plant is a) Plate heat exchanger b) Shell and tube exchanger c) Run around coil exchanger d) All of the above
Last Answer : Plate heat exchanger
Description : A ______ is a specialized heat exchanger in which air and water are brought into direct contact with each otherin order to reduce the water's temperature. a. Cooling tower b. Heating tower c. Both d. All are wrong
Last Answer : cooling tower
Description : What is the full form of AS/RS in FMS? a.Automated storage and recovery system b.Automatic storage and rotary system c.Automated storage and retrieval system d.Automated storage and regenerative system
Last Answer : c.Automated storage and retrieval system
Description : An example of recuperative furnace is the (A) Soaking pit (B) Open hearth furnace (C) Coke ovens (D) None of these
Last Answer : (A) Soaking pit
Description : Which of the following is not a recuperative furnace? (A) Soaking pit (B) Reheating furnace (C) Steam boiler (D) Coke oven
Last Answer : (D) Coke oven
Description : Why supercritical boilers use less amount of steel compared to non-supercritical boilers ?
Last Answer : Supercritical boilers do not head heavy drum for separation of steam from mixture of water and steam
Description : Why large boilers are water tube type ?
Last Answer : Water tube boilers raise steam fast because of large heat transfer area and positive water circulation. Thus they respond faster to fluctuations in demand. Further single tube failure does not lead to catastrophy.
Description : Induced draft fans provided in large thermal power plant boilers have __________ blades. (A) Forward curved (B) Backward curved (C) Double curved (D) Radial or straight
Last Answer : (B) Backward curved
Description : are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. c) Combustion analyzer. b) Light analyzer. d)Temperature analyzer
Last Answer : Combustion analyzer.
Description : are portable devices capable of estimating the combusting efficiency of furnaces, boilers, or other fossil fuel burning machines. a) Sound analyzer. b) Light analyzer. c) Combustion analyzer. d) Temperature analyzer.
Description : In a power plant, coal is carried from storage place to boilers generally by means of (A) Bucket (B) V-belts (C) Trolleys (D) Manually.
Last Answer : V-belts
Description : The fuel mostly used in steam boilers is A. brown coal B. peat C. coking bituminous coal D. non-coking bituminous coal
Last Answer : Answer: D
Description : In regenerative air preheater (as practised in heating of coke ovens), the heat is transferred (A) Through a metallic wall (B) By direct contact of hot flue gas with air (C) By ... material (like chequor bricks) and then heating the air from this hot material (D) None of these
Last Answer : (C) By heating an intermediate material (like chequor bricks) and then heating the air from this hot material
Description : Regenerative braking involves : a) Nano fibers that repair the surface of brake pads b) Reducing the amount of friction c) Reclaiming heat from the brake and using it for power d) All of the above
Last Answer : c) Reclaiming heat from the brake and using it for power
Description : Heat Exchanger Types and Uses?
Last Answer : A heat exchanger is a piece of industrial equipment thattransfers heat from one surface to another. It is used as a safetydevice that is meant to keep equipment from overheating tooquickly. Heat ... heatthrough conductive materials and expel it into the outside air,which cools the interior of the
Description : Name any four types of shell and tube heat exchanger.
Last Answer : Four types of shell and tube heat exchanger: 1. Fixed tube heat exchanger 2. Floating head heat exchanger 3. U- tube type heat exchanger 4. Kettle/ Reboiler type heat exchanger
Description : In industrial operations fluids with temperature less than __________ are set as the limit for waste heat recovery because of the risk of condensation of corrosive liquids a. 80C b. 100C c. 120C d. 200C
Last Answer : 100C
Description : Calculate the recoverable waste heat (Q, in kCal/hour) from flue gases using the followingparameters: V (flow rate of the substance) 2000 m3/hr r (density of the flue gas): 0.9 kg/m3 Cp (specific heat ... (temperature difference): 120 oC h (recovery factor): 50% a. 21600 b. 43200 c. 25600 d. 34000
Last Answer : 21600
Description : A high temperature waste heat recovery unit consists of recovering waste heat at temperaturesgreater than _______. a) 200 °C b) 500 °C c) 300 °C d) 400 °C
Last Answer : 400 °C
Description : What are the benefits or the advantages of waste heat recovery units (WHRU)? a) Reduced Pollution b) Reduced equipment sizes c) Reduced auxiliary energy consumption. d) All of the above
Last Answer : All of the above
Description : Traditionally, waste heat of low temperature range ________ has not been used for electricitygeneration despite efforts by ORC companies, mainly because the Carnot efficiency is rather low. a) 0-250 °C b) 0-150 °C c) 0-200 °C d) 0-120 °C
Last Answer : 0-120 °C
Description : The waste heat recovery unit (WHRU) is a tool involved in _______. a) Regeneration b) Cogeneration c) Both ‘a’ and ‘b’ d) None of the above
Last Answer : Cogeneration
Description : The waste heat energy could be used to produce ....... a) Cool air b) Hot air c) Exhaust gas d) All of the above
Last Answer : Cool air
Description : The biggest point sources of waste heat originate from ....... production. a) Steel or Brass b) Copper or Glass c) Steel or Glass d) Steel or Copper
Last Answer : Steel or Glass
Description : One of the key areas for ....... energy saving in existing systems is waste heat recovery. a) Potential b) Kinetic c) Thermal d) Electrical
Last Answer : Potential
Description : Techniques of waste heat recovery ....... a) Direct contact condensation b) Indirect contact condensation c) Transport membrane condensation d) All of the above
Description : A waste heat recovery system in industrial process has been key to reduce ....... Consumption. a) Coal b) Fuel c) Biogas d) Oil
Last Answer : Fuel
Description : Nellore to medium temperature waste heat recovery system the most suitable device is ------ a) Economizer b) Heat wheels c) Air preheater d) Recuperate d) Carbonate
Last Answer : Heat wheels
Description : A major advantage of waste heat recovery in industry is a) Reduction in pollution c) Increase efficiency d) None of the above
Last Answer : Reduction in pollution
Description : Recovery of waste heat from hot fluid to fluid is called: a) thermo compressor b) waste heat recovery boiler c) heat Pump d) economizer
Last Answer : heat Pump
Description : Recovery of heat from dryer exhaust air is a typical application of: a) Waste heat recovery boiler b) Heat pump c) Heat wheel d) Economizer
Last Answer : Heat wheel
Description : In a low to medium temperature waste heat recovery system which of the device is most suitable a) Economiser b) Heat wheels c) air preheater d) Recuperator
Description : Air preheater is not used as a waste heat recovery system in a____. a) Boiler b) billet Reheating Furnace c) Heat treatment furnace d) compressor
Last Answer : compressor
Description : Recuperated is used mainly as a waste heat recovery system in a ____. a) Boiler b) Billet Reheating Furnace c) Compressor d) None of the above
Last Answer : Billet Reheating Furnace
Description : Major advantage of waste heat recovery in industry is: a) Reduction in pollution b) increase in efficiency c) Both a & b d) none of the above
Last Answer : Both a & b
Description : Which of the following is not applicable to fluidised bed combustion of coal? (A) It cannot burn low grade coal (B) It achieves higher fuel combustion efficiency (C) Less heat transfer surface area is required in boilers (D) None of these
Last Answer : (A) It cannot burn low grade coal
Description : The economiser is used in boilers to........ A]Increase thermal efficiency of boiler B]Economise on fuel C]Extract heat from the exhaust the gases D]Increase flue gas temperature
Last Answer : A]Increase thermal efficiency of boiler
Description : Do you have any experience with induction cooktops? Is it a portable single unit or multi burners?
Last Answer : answer:Thank you for teaching me a new term .I had no idea that it was called an induction cook-top. Yes, the partner and I have one. Before it, I had never used anything other than electric coil ... the cook-top. They do heat up very quickly, but it still takes time for the surface to cool down.
Description : What's the best way to clean gas stove burners?
Last Answer : answer:I suggest that you use hot water, a brillo pad and elbow grease. The instructions for most self-cleaning ovens tell you to remove the stainless steel racks before cleaning because they will discolor. ... 's 800 number, if you were feeling creative. Or, as a last resort, read the manual.