how can a hermetic compressor be tested for efficiency

Q: The centrifugal dynamic compressor design is as per standards O a API 618 Ob API 917 Oc API 619 Od.…

A: API 618 :- Design standard for reciprocating compressor. API 917 :- Design standard for phase…

Q: True or False: All reciprocating compressors start up fully loaded.

A: Reciprocating Compressors

Q: name two advantages and two disadvantages that air has in comparison to oil when used in a fluid…

A: To write: The two advantages and two disadvantages that air has in comparison to oil when used in a…

Q: Darrieus turbine does not requires guy wires to support. Select one: O True O False

A: We are to determine the support system for darrieus turbine

Q: What are the types of Centrifugal Fan?

A: Centrifugal fans are the mechinally operated device which is usedfor increasing the volume of air in…

Q: can we use a wattage regulator for high speeds?

A: Wattage regulator is device to control the speed of a running device.

Q: The compressor stops when the outdoor fan motor is

A: Option a) faulty

Q: The evaporating pressure is 76 psig for R-22 and the evaporator outlet temperature is 58°F.What is…

A: The degree of superheat is the difference between temperature and saturation temperature. At a…

Q: Which of the following does not help in collecting results in the mechanical heat pump Select one:…

A: Given Data⇒ Mechanical heat pump

Q: what should you know before choosing a respirator

A: Workers should use respirators for cover from contaminants within the air on condition that…

Q: 8. What would be done to increase the compressor speed on a belt-driven compressor? A. Decrease…

A: Dear student,                     According to the guidelines I am allowed to answer only one…

Q: ne fluid power system

A: Pnuematic.

Q: specific air consumption

A:

Q: Savonius type of vertical axis turbine is self starting Select one: True False

A:

Q: running and delivering air at 12

A: Given: t=12 minPmax=180 PsiPmin=155 PsiQr=25 scfmQc=0

Q: What determines the cut off point in performance of wind turbine

A: Turbines cut in and cut off speeds are determined by the manufacturer to protect the turbine from…

Q: The day bulb temperature at the exit

A: Given data;  Air at atmospheric pressure;  Wet bulb temperature, WBT=200C  Dry bulb temperature,…

Q: Technician A says that suction lines become very warm during A/C operation. Technician B says that…

A: Suction line:The piping line which connects the outlet of the evaporator(refrigerated space)  to…

Q: Write the classification of air compressor based on the principle of operation.

A: The four most common sorts of air compressors are: Rotational Screw Compressor. Reciprocating Air…

Q: It is feasible to reuse the heat from the condenser and use it for domestic heating. a) Yes b) No…

A: Yes it is possible to extract heat from the condenser and use it for domestic heating of water at…

Q: Multi-evaporator system with individual multiple expansion compressors and valves

A: ME-VCS (multi-evaporator vapour compression systems) are used to cool numerous zones. The…

Q: The centrifugal dynamic compressor design is as per standards O a. API 618 O b. API 917 O. API 619 O…

A:

Q: 16. Refrigerant: R-22 Required Subcooling: 8 degrees High side pressure: 155 High side temperature:…

A: Disclaimer  Since you have asked multiple question, we will solve the first question for you. If you…

Q: How can an evaporator be tested for efficiency?

A: Generally the efficiency of an evaporator is completely depends upon the ability of the evaporator…

Q: ID: A 41. what could happem if a semi-hermetic com is edith dhe waction srvice valve hack the…

A: Dear student, as per the Bartleby guidelines, we are authorized to answer the first three questions…

Q: 11 psig 17 psig 4 feet 20 psig 6. What is the static pressure per foot of head?

A: Within the 4ft the pressure change is  Pressure change = 20-17 psig=3 psig

Q: Which of the following type does Screw compressor belong to? None of the mentioned O Dynamic…

A: Screw compressor: It is a positive displacement type compressor. In the screw air compressors, the…

Q: Which type of compressor uses V-belt to create compression in the compresso

A: V-belt: These types of belt are most widely used in factories and workshops where a great amount of…

Q: ". Compressor blades are twisted from root to tip:

A: Compressor blades are twisted from root to tip

Q: The COP of a Carnot heat pump

A: Given; The COP of carnot HP operating  b/w   ⇒ 60C and 370C

Q: Which of the following is NOT a unit of pressure? Pa bar N/m2 ON

A: Pressure: The pressure is defined as the ratio of force per unit area. The unit of the pressure is…

Q: Define the waste heat from a compressor can be used to heat a building in winter.

A: Compressor heat is very critical in the hot days of summer.  If the heat arising due to…

Q: t down at least 4 Pressure Sources and Their Description

A: pressure = Force area

Q: Difference between ESW and EGW

A: Both the Electroslag welding and Electrogas welding are almost identical with similar kind of…

Q: Hermetic compressors are used mainly in smaller systems as they: * Yield higher COP Offer the…

A: Hermetic compressor have compressor and motor are in same shell.

Q: Explain the functions of a steam generator

A: steam generators   steam genrators are heat exchangers use to convert water in to steam fromheat…

Q: Which of the following heating system is known as umbrella system? (it works against natural…

A: Given Umbrella system heating system To find Supporting statement

Q: a) Free air capacity b) Power of compressor

A:

Q: What would be done to increase the compressor speedon a belt-driven compressor?A. Decrease drive…

A: Typically, belt pulley systems are used to drive the generators that power the compressors. The size…

Q: what is Cp of the air Properties and Compressor

A:

Q: Choose the symbol for Fixed displacement single rotation compressor. Select one: O a. O b. Oc. d.

A: option a is only for fixed displacement compressor  option b is double rotation direction variable…

Q: 4. A 4 m' storage tam pressure is 20 bar. A steam in the tank? Hov

A: The specific volume of the steam at the given pressure and temperature is v˙=0.1115 m3/kg Initial…

Q: velocity reduction method is used for very large layot duct very simple layot duct simple and large…

A: Note: Since you have asked multiple question, we will solve the first question for you. If you want…

Q: Which one of the following is a CFC refrigerant?

A: Given; Choose the CFC refrigerant for the following;Where,   CFC stands for; Chlorofluorocarbon

Q: Write short notes on the following : (a) Optimal stage pressure ratio on reciprocating compressor…

A: We are authorized to answer one question at a time since you have not mentioned which question you…

Q: difference in enthalpies of air between the exit and the inlet of the compressor

A: Given; Air enters a perfectly insulated compressor at a temperature of 310 K. The pressure ratio of…

Q: What is definition of natural gas compressor?

A: Natural Gas Compressor: Generally compressor used for increasing the pressure and temperature of the…

Q: The pressure of refrigerant at the inlet compressor is called; * suction pressure discharge pressure…

A:

Q: Why is a multicircuit evaporator used?

A: Multi circuit evaporator consists of two or more evaporator that can be at same temperature or at…