The use of rain water can result in a 60% reduction of your cooling costs
Rain water is generally not in short supply in Northern Ireland and recent results from tests carried out by the Farm Energy Centre & benchmarking by CAFRE have shown real electricity savings of 60% in the cost of pre cooling milk with rainwater compared to a system with no pre-cooling.
“Cooling milk accounts for about 38% of the electricity used on a dairy farm,” explained Irwin Arrell of United Tankcare. “Pre-cooling using a plate cooler is the best way to reduce these costs. However few dairy farms have sufficient water to achieve good results and bore hole water is not always available. (Nor is it without cost as it still has to be pumped from the ground). Rainwater makes an excellent and low cost alternative.”
“Rain water harvesting involves collecting the water from buildings and storing it in a large tank. The ‘Versatile Dairy System’ developed by United Tankcare and Drilling and Pumping Supplies Ltd uses this rain water to cool the milk, and to supply water for surface washing and cow drinking.”
“During operation of the milk pump (milking period only) the water is automatically pumped through the plate cooler to pre-cool the milk before it goes into the bulk tank. The water is then returned to the external water storage tank. All the water from the milk cooling is then reused for the stock drinking water supply and the volume wash pump can also be supplied from the same holding tank.”
“The system design ensures that the stock drinking trough and volume wash systems will always have a supply of water with a reserve capacity backed up from bore hole and/or mains water.” “The stock drinking water supply is purified using an ultra violet disinfection system and a large capacity 100 micron filter assembly.”
Together Tankcare and Drilling & Pumping Supplies Ltd design and supply a bespoke installation for each farm. The system is designed to conserve water, improve farm efficiency and provide for very efficient milk cooling. United Tankcare design a plate cooler specifically to exactly match each producer’s needs and then specify the pumping requirement to Drilling & Pumping Supplies.
“Tests carried out by the Farm Energy Centre & benchmarking by CAFRE on two installations in Northern Ireland have shown actual electricity cost savings in total milk cooling costs at both installations of around 60% compared to a system with no pre cooling. This means that the bespoke design and installation will potentially leave a payback period of 2 to 5 years depending on the level of equipment required – an opportunity worth investigating for most dairy farmers,” said Irwin.
For further information on the Versatile Dairy System’ please contact Irwin Arrell of United Tankcare on either 028 9037 2099 or on 0771706410.