Projects

Nursery Jan van der Knaap

Kwekerij Jan van der Knaap- Honselersdijk specialises in growing a wide range of seasonal products on a 4.7 hectare nursery. A Trias geothermal connection has been realised on the farm.

Together with Jan van der Knaap and his advisor we looked at all the possibilities in order to design the best possible installation with the highest possible efficiency from the geothermal heat. This resulted in the following additions and adjustments, realised by Horti-Cutura:

1. Vertical tank 508 m3 with a nitrogen generator expansion system and accessories.

2. Tank connected to boiler house by means of 2 x 170 metres of horizontal drilling.

3. Open buffer connection of the tank - the heat storage tank is connected to the boiler piping by means of the open buffer filling system. The boiler is fitted with a heat retention system.

4. Extra return for 2 floor groups - For the 2 floor heating groups in the greenhouse, an extra connection is made in the return. In the boiler house these two connections are combined and connected to the secondary side of the geothermal exchanger. In this way we get the coldest return water on the geothermal exchanger and not a mixing temperature of all greenhouse groups.

5. Insulation of tank and piping

6. Concrete foundation of the heat storage tank.

Start of project mid 2021, completion December 2021.

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Nature's Heat is a joint initiative of nine horticultural companies in Kwintsheul, with a combined surface area of 51 hectares and a wide variety of crops. The drilling started in the summer of 2016. The depth is 2,500 meters and the heat that is pumped up is approximately 85 degrees. The expected capacity of the source is approximately 16 MWth (P50). This means a saving on natural gas of approximately 22 million m3, an emission reduction of approximately 40 million kg CO2 and 72,000 kg NOx per year. The drilling and construction of the heat plant and distribution network is a turnkey project of GERF (Geothermal Energy Realization and Financing), a Daldrup operating company.

Horti-Cultura's role in the Nature's Heat project

Horti-Cultura is responsible for the sweet part of the installation on behalf of GERF

and connecting 6 of the growers to the geothermal source.

Update June 2017:

New milestone for Nature's Heat geothermal energy project in Kwintsheul: The prefabricated pipes for the fresh part of the installation have been transported to the pump house. We have started connecting the individual growers.

Salty and sweet

The fresh part of the geothermal energy installation refers to the part behind the source exchangers (heat exchangers), or the installation water on the grower's side.

The saline part of the installation is the part that provides the water flow from and to the geothermal doublet. The water that is pumped up is many times saltier than sea water.

The salty, warm water is pumped up from the production well, and the heat is exchanged with the fresh part of the installation via the heat exchanger. The cooled water is returned to the earth via the injection well where it warms up again.

The water heated on the fresh side by the heat exchanger is distributed to the affiliated nurseries via a distribution network. By using heat buffers and optimal cooling, the heat gained is used as efficiently as possible.

Video Nature's Heat

Salm Boskoop

Glasparel Zuidplaspolder, Glasparel, Zuidplaspolder,

Salm Boskoop is a large nursery with no fewer than eight branches in the Netherlands and one in Portugal. The assortment consists of Lavender, Buxus, Gaultheria, Conica, Pinus Pinea, Ilex and Deco Fruit. Since 2012, the company has its own breeding and testing facility. Here, they look for new varieties and test new cultivation methods. The aim is to have even stronger plants and to use less crop protection agents.

In 2021, a new, highly automated nursery of 15,428 m2 with a double cultivation layer was built at Paddegat 3 in Boskoop. Horti-Cultura designed and calculated the heating system, together with Paul van der Salm and a consultant. The client carried out a large part of the work itself.

1. Delivery of 2x 350 metres transport pipe with expansion facilities through the existing greenhouse of 12,700 m2 and the shadow greenhouse.

2. Manifold in the new greenhouse

3. Table heating, upper grid, gable heating and heating 2nd layer of cultivation (pipe work including suspension and support material)

4. Delivery Pumps, mixing valves, welding materials, hose and suspension material, occasional expansion vessel, pipes and spraying.

5. Insulation

Start of project mid 2021, completion February 2022.

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Glasparel is an area of 90 hectares of land for new greenhouse horticulture companies to be built in the triangle between Rotterdam, Gouda and Zoetermeer.

A wood-fired CHP will be installed to generate electricity. The cooling water from this engine is used to heat the greenhouses in the area and in the vicinity. There is a total of 73.1 hectares of glass as a purchase potential.

In the future (phase 2) a bio-digester can be connected there as a heat source and the consumption potential can be expanded with growers on the Oogstpad and Abr. Kroesweg.

In addition, Glasparel wants to connect to a wide open heating network, including Warmtecoöperatie Zuidplaspolder, Wayland Energy and Warmtebedrijf Rotterdam. Potential heat sources envisaged by the partnership are residual heat from the port of Rotterdam via the Leiding over Oost, local biomass combustion and geothermal energy.

Horti-Cultura 's role in the Glasparel project: Design heat distribution network.

Commissioned by Wayland Energy, we make a design for a hot water distribution network to the growers that are connected to the distribution pipe of the heat network. The scope of this design:

- pipe plan with diameters of the distribution network

- route reconnaissance with possibilities and impossibilities

- heat connections to the horticultural businesses based on maximum purchase.

Oud’s Amazone Trading – Federal NSW Australië

Oud's Amazone Trading is a modern and progressive nursery, of 6,234 m2 divided over 5 greenhouses/departments, located in the excellent subtropical growing conditions of the Byron Bay hinterland in the extreme north-east of New South Wales in Australia. Established more than thirty-five years ago by Kas Oud as the third generation grower from Aalsmeer. Oud's Amazone Trading is proud to be the first Australian nursery to introduce many new plants into retail, such as Lucky Bamboo and Zanzibar Gem.

Our assignment was initially an advisory project in which we looked at the possibilities of making the switch from decentralised to centralised energy generation for the 5 greenhouses. This resulted in advice on how to make energy generation more sustainable, such as the use of solar panels and heat pumps. A number of greenhouses were still unheated and we included their heating in the plan. The implementation of these plans is realised in phases and the second step was the engineering and supply of the materials for heating the greenhouses and the switch to a central heat supply for the 5 greenhouses.

1. Delivery of 2x 180 metres pre-insulated transport pipe with expansion facilities

2. Manifold in the new boiler house

3. 5 Prefabrication of mixing groups in the greenhouse and 1 transport group

4. Forcas table heating and wall heating (pipe work including suspension and support material)

5. Delivery Pumps, mixing valves, welding materials, hose and suspension material and pipes.

6. Container transport

7. Insulation

Start of project consultancy November 2020, loading container beginning March 2021

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Zuidplaspolder heat cooperation

The Warmtecoöperatie Zuidplaspolder was founded in 2016. They want to connect to Cluster East of the South Holland Heat Roundabout, a pipeline that is to run from the port of Rotterdam to Leiden. 54 horticultural companies (approx. 252) are now affiliated with this cooperative.

Horti-Cultura's role in the Zuidplaspolder Heat Cooperation project: Design heat distribution network.

Horti-Cultura was asked to make a design study of the hot water distribution network to the growers that are connected to the return of the heat distribution pipeline from the port of Rotterdam to Leiden. This includes the following points:

1. Design and dimensioning of the route

2. Heat connections: technical elaboration of the integration of the heat connection for different operating types

3. Investment estimate and operating budget heat network heat connections

South Holland heat roundabout

The plan to transport residual heat from the port of Rotterdam to Leiden via a so-called heat roundabout is about two years old. The reason for this study is that in 2020 the power plant in Leiden on the Langegracht will be shut down and the city needs an alternative for, among other things, the gas-fired district heating network.

The length of the transport pipeline is approximately 43 kilometers and will be laid via the eastern route and will form part of a large-scale heat network in the province of South Holland. The route of the transport pipeline runs through / along the horticultural area of the Zuidplaspolder. As a result, the initiative was taken to conduct a feasibility study into whether it is possible to realize a connection in this horticultural cluster and thus further cool the return of the transport pipeline by the greenhouse horticulture companies. The supply temperature of the water in the transport pipe is 125 ° Celsius and the return is 70 ° Celsius.

There is also a possibility in the future to connect to two bio-fermentation installations near the horticultural cluster Zuidplaspolder.

Video Zuidplaspolder

Overview of projects

Below you will find an overview of work we carried out before 2021.
If you have specific questions about one of these specialisations or if you have become interested in one of our services, we would like to refer you to our contact page. Ask your question here or leave your details and we will contact you as soon as possible.

RESEARCH AND DEVELOPMENT

Innovative clients are increasingly turning to us to participate in a design team for sustainable energy solutions where we provide our input for the link with horticultural installation technology.

ENGINEERING

17 engineering projects. New build as well as optimisation and feasibility calculations.

SPECIALIZATION ENERGY SCAN

7 Energy scans carried out at growers with energy-saving advice.

SPECIALIZATION HEATING NETWORK

5 hot water distribution networks designed for large and small heat clusters in Westland, Oostland and Zuidplaspolder.

SPECIALIZATION GEOTHERMAL ENERGY

4 projects consulting, engineering and realisation of the secondary side of geothermal heat sources in the Netherlands and Croatia. Designing and installing delivery stations at affiliated growers. Optimising existing geothermal clusters.

SPECIALISATION OPTIMAL COOLING

12 projects advice, engineering and realisation of adjustments to the heating installation to lower the return temperature and thus increase the efficiency of the geothermal connection or residual heat system.