QUESTION $4$

A $6-$cylinder reciprocating ammonia compressor between $-10C$ saturated suction and $30C$ saturated condensing temperatures has a cylinder bore of $80$ mm and a stroke of $65$ mm $.$ It runs at $1650re\frac{v}{m}in,$ has a refrigerating capacity of $95$ kW and a clearance of $4\mathrm{.}5\%.$ The drive power is measured at $35$ kW $.$ Assuming a standard cycle, calculate:

$4\mathrm{.}1$ the compressor displacement

$(2)$

$4\mathrm{.}2$ the clearance volumetric efficiency

$(5)$

$4\mathrm{.}3$ the actual volumetric efficiency, and

$(9)$

$4\mathrm{.}4$ the compressor efficiency.

$(3)$

$[18]$

please assist.