{"id":968,"date":"2021-01-26T05:16:21","date_gmt":"2021-01-26T05:16:21","guid":{"rendered":"http:\/\/www.decarbonisation.co.nz\/?page_id=968"},"modified":"2021-04-26T20:25:04","modified_gmt":"2021-04-26T20:25:04","slug":"space-heating-cooling","status":"publish","type":"page","link":"https:\/\/www.decarbonisation.co.nz\/?page_id=968","title":{"rendered":"Space Heating Cooling"},"content":{"rendered":"\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t

Decarbonised Energy Solutions is committed to providing efficient, reliable, space heating, cooling and fresh air tempering solutions that meet performance requirements, by take an integrated design approach. <\/p>

We provide new systems and are also experts in decarbonising existing systems. <\/span><\/p><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

\n\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t

Decarbonising an existing System - while making use of existing distribution infrastructure<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Centralised heating systems:
– Centralised supplementary heating to 80 deg C.<\/span><\/p>

Where a particular site suits a centralised heating system, and the peak heating demand of the existing system requires 80 deg C water, we integrate a thermal storage into the system, to take advantage of low electricity pricing overnight. This approach avoids the need to upgrade the existing heating system by adding additional radiators or fan-coils and allows the transient peak heating period demand to be met through supply of 80 deg C heated water. With heating demand during the day decreasing as ambient temperature increases, the supply of 80 deg C water temperature can be reduced, followed by direct heating with heat-pump water heating at 55-60 deg C. The control and use of the thermal store, where required is automated. During shoulder seasons, the heat-pump would directly supply the heating load, without the need for supplementary heating.\u00a0Outside of peak heating demand periods, the thermal store is used to reduce heating startup times.<\/span>\u00a0<\/span><\/p>

Centralised heating systems:
– Supplementary heating with fan coils.<\/span><\/p>

Where a particular site suits a centralised heating system, and there is ready access to ceiling space in the heated spaces, it is proposed to provide supplementary heating using ducted fan coils to meet peak heating demand. This approach maximises the efficiency of the heat-pumps, and allows greater control of the indoor temperature through control of the output of the fan coil.<\/p>

This approach was successfully demonstrated during the boiler replacement project at a Northland hospital, with a variable primary flow heat-pump water connected to the existing flow \/ return header.<\/p>

Distributed heating systems:
– Supplementary heating with fan coils.<\/span><\/p>

Generally when transitioning from a centralised heating system to a distributed system, the water temperature supplied to the heating loop can be reduced to account for the reduction in distribution losses within the system, as the heating source is considerably closer to the point of demand. This approach also allows heating supply to be more directly matched with the load, for the zone being heated.<\/p>

This approach has been demonstrated successfully a second hospital boiler replacement project, and has the advantage of not degrading the energy efficiency of the overall system by requiring an elevated operating temperature that is only required to meet the design heating condition.<\/p>

Electric Boilers and Thermal Stores.<\/span><\/p>

Where specific site limitations prevent the use of heat-pump water heaters, we are able to design and supply electric boilers. These boilers are available at up to 410 kW capacity, and have been widely used throughout New Zealand for many years. Our preference however, is to make use of heat-pump water heating technology where possible for the greater efficiency of these systems when used within their operating limits.
We also recognise the benefits of the integration of thermal stores into a water heating system to provide both a store of higher temperature water, and to avoid electricity consumption during peak demand periods where the electricity tariffs are elevated. We can integrate a range of thermal stores into our design<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t

\n\t\t\t\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t
\n\t\t\t
\n\t\t\t\t\t\t\t
\n\t\t\t\t\t\t
\n\t\t\t\t
\n\t\t\t

Provision of Cooling, Fresh Air Ventilation and Tempering.<\/span><\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t

Cooling<\/span><\/p>\n

New Zealand is increasingly recognising the importance of summer cooling and ventilation. Decarbonised Energy Solutions have considered how the existing heating distribution system can provide a cost-effective method to support cooling using R32 inverter water source air-conditioners.. This approach avoids the condensation problem that would be experienced by taking this approach with a chilled water system.<\/p>\n

The water sourced systems we employ support the integration of CO2 sensing ventilation control for optimised efficiency and indoor air quality. The units also suits heating applications, and draw energy from the radiator water loop, or can be separately supplied by a heat-pump water heater \/ chiller.<\/p>\n

Fresh air Tempering.<\/span>
Heat-pump water heaters have been used in a number of fresh air tempering projects. The variable primary flow approach is well suited to this application as the supply air temperature can be readily controlled by varying the flow rate through the heat-pump. Our heat-pump units offer a turn-key controls solution for fresh air tempering.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

Decarbonised Energy Solutions is committed to providing efficient, reliable, space heating, cooling and fresh air tempering solutions that meet performance requirements, by take an integrated design approach.  We provide new systems and are also experts in decarbonising existing systems.  Decarbonising an existing System – while making use of existing distribution infrastructure Centralised heating systems:– Centralised …<\/p>\n

Space Heating Cooling<\/span> Read More »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"yoast_head":"\nSpace Heating Cooling - Decarbonised Energy Solutions<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.decarbonisation.co.nz\/?page_id=968\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Space Heating Cooling - Decarbonised Energy Solutions\" \/>\n<meta property=\"og:description\" content=\"Decarbonised Energy Solutions is committed to providing efficient, reliable, space heating, cooling and fresh air tempering solutions that meet performance requirements, by take an integrated design approach.  We provide new systems and are also experts in decarbonising existing systems.  Decarbonising an existing System – while making use of existing distribution infrastructure Centralised heating systems:– Centralised … Space Heating Cooling Read More »\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.decarbonisation.co.nz\/?page_id=968\" \/>\n<meta property=\"og:site_name\" content=\"Decarbonised Energy Solutions\" \/>\n<meta property=\"article:modified_time\" content=\"2021-04-26T20:25:04+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\">\n\t<meta name=\"twitter:data1\" content=\"4 minutes\">\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.decarbonisation.co.nz\/#organization\",\"name\":\"Decarbonised Energy Solutions\",\"url\":\"https:\/\/www.decarbonisation.co.nz\/\",\"sameAs\":[],\"logo\":{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/www.decarbonisation.co.nz\/#logo\",\"inLanguage\":\"en-US\",\"url\":\"https:\/\/www.decarbonisation.co.nz\/wp-content\/uploads\/2021\/01\/decarbonised-energy-solutions.png\",\"width\":203,\"height\":190,\"caption\":\"Decarbonised Energy Solutions\"},\"image\":{\"@id\":\"https:\/\/www.decarbonisation.co.nz\/#logo\"}},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.decarbonisation.co.nz\/#website\",\"url\":\"https:\/\/www.decarbonisation.co.nz\/\",\"name\":\"Decarbonised Energy Solutions\",\"description\":\"Supporting a Zero Carbon Future\",\"publisher\":{\"@id\":\"https:\/\/www.decarbonisation.co.nz\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/www.decarbonisation.co.nz\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.decarbonisation.co.nz\/?page_id=968#webpage\",\"url\":\"https:\/\/www.decarbonisation.co.nz\/?page_id=968\",\"name\":\"Space Heating Cooling - Decarbonised Energy Solutions\",\"isPartOf\":{\"@id\":\"https:\/\/www.decarbonisation.co.nz\/#website\"},\"datePublished\":\"2021-01-26T05:16:21+00:00\",\"dateModified\":\"2021-04-26T20:25:04+00:00\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.decarbonisation.co.nz\/?page_id=968\"]}]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","_links":{"self":[{"href":"https:\/\/www.decarbonisation.co.nz\/index.php?rest_route=\/wp\/v2\/pages\/968"}],"collection":[{"href":"https:\/\/www.decarbonisation.co.nz\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.decarbonisation.co.nz\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.decarbonisation.co.nz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.decarbonisation.co.nz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=968"}],"version-history":[{"count":34,"href":"https:\/\/www.decarbonisation.co.nz\/index.php?rest_route=\/wp\/v2\/pages\/968\/revisions"}],"predecessor-version":[{"id":1443,"href":"https:\/\/www.decarbonisation.co.nz\/index.php?rest_route=\/wp\/v2\/pages\/968\/revisions\/1443"}],"wp:attachment":[{"href":"https:\/\/www.decarbonisation.co.nz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=968"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}