Problem 5.1 The following data are given for a family biogas digester suitable for the output of six cows the retention time is 25 days, temperature is 27° C, dry matter consumed per day per cow is 2 kg, biogas yield is 0.26 m'/kg. The efficiency of burner is 70%, methane proportion is 0.75. Assume heat of combustion of methane is 28 MJ/m'. Determine (i) the volume of biogas digester, and (ii) the power available from the digester.

Problem 5.1 The following data are given for a family biogas digester suitable for the output of six cows the retention time is 25 days, temperature is 27° C, dry matter consumed per day per cow is 2 kg, biogas yield is 0.26 m'/kg. The efficiency of burner is 70%, methane proportion is 0.75. Assume heat of combustion of methane is 28 MJ/m'. Determine (i) the volume of biogas digester, and (ii) the power available from the digester.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter39: Residential Energy Auditing

Section: Chapter Questions

Problem 4RQ: Performing a home energy audit starts with a visualinspection of a home and its energy systems which...

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