A natural gas-fired condensing boiler has a heating capacity of 38 kW. The fuel heating values are LHV = 49 MJ/kg and HHV = 55 MJ/kg. The boiler efficiency based on HHV is 0.87. Determine the fuel consumption rate in the boiler and the boiler efficiency based on LHV.

A natural gas-fired condensing boiler has a heating capacity of 38 kW. The fuel heating values are LHV = 49 MJ/kg and HHV = 55 MJ/kg. The boiler efficiency based on HHV is 0.87. Determine the fuel consumption rate in the boiler and the boiler efficiency based on LHV.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter1: Basic Modes Of Heat Transfer

Section: Chapter Questions

Problem 1.75P: Referring to Problem 1.74, how many kilograms of ice can a 3-ton refrigeration unit produce in a...

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Question

A natural gas-fired condensing boiler has a heating capacity of 38 kW.
The fuel heating values are LHV = 49 MJ/kg and HHV = 55 MJ/kg. The
boiler efficiency based on HHV is 0.87. Determine the fuel consumption
rate in the boiler and the boiler efficiency based on LHV.

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