$1\mathrm{.}5$ Calculation Hot water pipe inside diameter $=.$

$...10.$

mm

Hot water pipe outside diameter $=$

$.\mathrm{.}12$

mm $1\mathrm{.}5$ Calculation

$1\mathrm{.}5\mathrm{.}1$ Calculate overall heat transfer rate for cold and hot water respectively.

$1\mathrm{.}5\mathrm{.}2$ Calculate overall heat transfer coefficient based on outside, inside and mean surface of heat transfer area respectively.

$1\mathrm{.}5\mathrm{.}3$ Calculate heat exchanger effectiveness.

$1\mathrm{.}5\mathrm{.}4$ Summarise your results as follows:

$1\mathrm{.}5\mathrm{.}1$ Calculate overall heat transfer rate for cold and hot water respectively.

$1\mathrm{.}5\mathrm{.}2$ Calculate overall heat transfer coefficient based on outside, inside and mean surface of heat transfer area respectively.

$1\mathrm{.}5\mathrm{.}3$ Calculate heat exchanger effectiveness.

$1\mathrm{.}5\mathrm{.}4$ Summarise your results as follows: